Sin(( – 1560)°) = – 0,8660254038
<span>y=-1/2x k</span>₁=-1/2<span>
y=[ ]x+3 k</span>₂=?
k₁*k₂=-1
-1/2*k₂=-1
k₂=-1/(-1/2)=-1*(-2)
k₂=2
y=2x+3
График во вложении
(x-4)(4x-3)+3=0
4x²-3x-16x+12+3=0
4x²-19x+15=0
Т. к. a+b+c=0 (4-19+15=0), то x1=1, x2=15/4=3,75